An observational case against nova hibernation

Details An observational case against nova hibernation An observational case against nova hibernation

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..449n&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 3, p. 449-456.

Astronomy and Astrophysics

Astronomy

29

Cataclysmic Variables, Novae, Astronomical Spectroscopy, Stellar Evolution, Stellar Luminosity, Stellar Spectra, White Dwarf Stars

Scientific paper

We use WHT spectroscopy and imaging to show that nova Vul 1670 (= CK Vul) has been incorrectly identified, and thus its luminosity cannot be used as evidence that novae fade into a 'hibernation' phase within 300 yr of their outbursts. INT spectroscopy is used to correct the magnitude of nova Sge 1783 (= WY Sge) for inclination, this result also implying that novae do not fade significantly. We therefore suggest that, while novae decline in the first 60 yr after outburst, thereafter their luminosity remains constant, and they never undergo a 'hibernation' phase. We show that this idea is consistent with the space density of novae and novalike variables, the outburst interval of SS Cyg and the current luminosities of old novae.

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